Shear band mediated microstructure in an accumulative roll bonded α-brass alloy during strain path changes and annealing

Abstract

Strain path changes of the accumulative roll bonded 90Cu–10Zn brass and its influence on the shear band structure is the aim of the present study. The effect of post-annealing was also studied in terms of shear bands and texture development. By changing the strain path, the shape of the shear bands has been changed and the material showed two different configurations of shear bands following deformation. Moreover, the XRD-based textural investigations elucidated similarities for the strain paths with similar shear bands. After annealing, a complete restoration occurred for all paths also entailed identical mechanical properties. The development of dual grain size after annealing can also be correlated to the shear band evolution. However, the textural variations for the annealed brass confirmed a textural complexity in shear-banded brass.